Space has a reminder mechanism that only reminds us of things that are even more terrifying than what they get. An asteroid named 2026 CC is moving in a path that would pass by Earth at approximately ...

The original version of this story appeared in Quanta Magazine. In October, a Falcon Heavy rocket is scheduled to launch from Cape Canaveral in Florida, carrying NASA’s Europa Clipper mission. The $5 ...

For the inner four planets in this solar system, each planet orbits the sun three times for every two orbits of the planet immediately to its outside. For the fourth, fifth and sixth planets, they ...